Home / 13,842.30-20,771.01-6,450.24

Finding the Fourth Proportional to 13,842.30, 20,771.01 and 6,450.24

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Solution

The fourth proportional to 13,842.30, 20,771.01 and 6,450.24 is: 9,678.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.30 : 20,771.01 = 6,450.24 : x
  2. Step 2: Convert to fraction form
    13,842.30/20,771.01 = 6,450.24/x
  3. Step 3: Cross multiply
    13,842.30x = 20,771.01 × 6,450.24
  4. Step 4: Simplify right side
    13,842.30x = 133,977,999.54
  5. Step 5: Solve for x
    x = 133,977,999.54/13,842.30
  6. Step 6: Final answer
    x = 9,678.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.